GE L90 Instruction Manual page 509
Ur series line current differential system
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Also See for L90:
- Instruction manual (900 pages) ,
- Communications manual (532 pages) ,
- Communications manual (526 pages)
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7 COMMANDS AND TARGETS
b) MAJOR SELF-TEST ERROR MESSAGES
The major self-test errors are outlined in this section.
MODULE FAILURE___:
Contact Factory (xxx)
•
Latched target message: Yes.
•
Description of problem: Module hardware failure detected.
•
How often the test is performed: Module dependent.
•
What to do: Contact the factory and supply the failure code noted in the display. The "xxx" text identifies the failed mod-
ule (for example, F8L).
INCOMPATIBLE H/W:
Contact Factory (xxx)
•
Latched target message: Yes.
•
Description of problem: One or more installed hardware modules is not compatible with the L90 order code.
•
How often the test is performed: Module dependent.
•
What to do: Contact the factory and supply the failure code noted in the display. The "xxx" text identifies the failed mod-
ule (for example, F8L).
EQUIPMENT MISMATCH:
with 2nd line detail
•
Latched target message: No.
•
Description of problem: The configuration of modules does not match the order code stored in the L90.
•
How often the test is performed: On power up. Afterwards, the backplane is checked for missing cards every five sec-
onds.
•
What to do: Check all modules against the order code, ensure they are inserted properly, and cycle control power. If
the problem persists, contact the factory.
FLEXLOGIC ERROR:
with 2nd line detail
•
Latched target message: No.
•
Description of problem: A FlexLogic equation is incorrect.
•
How often the test is performed: The test is event driven, performed whenever FlexLogic equations are modified
•
What to do: Finish all equation editing and use self tests to debug any errors.
UNIT NOT PROGRAMMED:
Check Settings
•
Latched target message: No.
•
Description of problem: The
grammed.
•
How often the test is performed: On power up and whenever the
setting is altered
.
•
What to do: Program all settings and then set
GE Multilin
PRODUCT SETUP
INSTALLATION
PRODUCT SETUP
L90 Line Current Differential System
setting indicates the L90 is not pro-
RELAY SETTINGS
PRODUCT SETUP
INSTALLATION
INSTALLATION
RELAY SETTINGS
7.2 TARGETS
7
.
RELAY SETTINGS
to "Programmed".
7-7
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